<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <link rel="stylesheet" href="bootstrap-5.3.0-dist/css/bootstrap.min.css">
</head>
<body>
  <div class="container">
    <form>
      <div class="row my-2">
        <label class="col-form-label col-form-label-lg col-sm-3" for="username">用户名：</label>
        <div class="col-sm-9">
          <input type="text" class="form-control" id="username" placeholder="请输入用户名">
        </div>
      </div>
      <div class="row mb-2">
        <label class="col-form-label col-form-label-lg col-sm-3" for="password">密码：</label>
        <div class="col-sm-9">
          <input type="password" class="form-control" id="password" placeholder="请输入密码">
        </div>
      </div>
      <div class="row">
        <div class="col-sm-12 text-center">
          <button type="submit" class="text-white bg-primary border-0 rounded-1 px-5 py-2">登录</button>
        </div>
      </div>
    </form>
  </div>
</body>
</html>